03. roc l8 (25) & roc l8 (30)

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Atlas Copco Surface Drill Rigs ROC ® L8 25 and ROC ® L8 30 Master of productivity and flexibility Hole diameter 110–203 mm (4 5 /16 –8")

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Page 1: 03. ROC L8 (25) & ROC L8 (30)

Atlas Copco Surface Drill Rigs

ROC® L825 and ROC®

L830

Master of productivity and flexibility Hole diameter 110–203 mm (4 5/16– 8")

Page 2: 03. ROC L8 (25) & ROC L8 (30)

You can now drill production holes, improve stripping ratio with double benching and pre-splitting, and control your dilution with reverse circulation (RC) with a single drill rig. The ROC L8 is ideal for most applications in surface mining and quarrying, such as the drilling of production blast holes, pre-split and buffer blast holes as well as lifters. Its flexibility also makes it well suited for drilling de-watering holes for pit-wall depressurisation.

Its low weight and limited dimensions makes the ROC L8 easy to move from site to site, from bench to bench. The versatility of the ROC L8 gives you unique benefits.

The ROC L8 offers you the following benefits: Straight, accurate blast holes for controlled fragmentation Improved stripping ratio through double benching and pre-splitting Reduction of waste extraction by increasing the pit slope angle Controlled dilution with reverse circulation (RC) sampling (optional module) Flexibility beyond conventional mining and quarry rigs

High drilling capacityand superior hole quality

Atlas Copco’s range of surface crawlers continues to raise the bar. The popular multipurpose ROC L8 drill rig has been refined to increase its performance and versatility – with an even higher capacity and greater flexibility than previous models.

Long life aluminium box profile hydraulic cylinder feed system with exchangeable snap on stainless steel wear protections

Full-length, spring operated canopy doors offers full access to service points

A selection of rotary heads for optimum use of 4–6" down-the-hole hammers

Full-view ROPS and FOPS cabin, silenced and vibration damped

Carousel tube handling system with deep hole capacity and free selection of drill tubes

The flexibility of the ROC L8 feed swing permits inclinations of up to 30 degrees right and left and 40 degrees forward.

Page 3: 03. ROC L8 (25) & ROC L8 (30)

A smart investment in power and precisionThe new ROC L8 operates at up to 30 bar pressure and comes with a choice of two different drill tube lengths; with long feed for 6 meter drill tubes or with short feed for 5 meter drill tubes and toe hole drilling capability. The penetration rate of the new ROC L8 is faster than its predecessors’. Drilling capacity has been increased by higher operat-ing pressure and a unique cylinder feeding system. The new alumini-um profile and tube-handling system accommodates drill tubes of up to 140 mm (5 ½”) in diameter.

DTH hammers – strikingly efficientThe ROC L8 can be equipped with a range of Atlas Copco down-the-hole (DTH) hammers well known for their high performance in terms of speed, reliability and longevity. With higher penetration rates and lower fuel consumption per metre drilled, our DTH ham-mers make a positive impact on your bottom line.

Flexibility and mobility in focusThe ROC L8 has excellent tramming ability for quick, safe trans-portation between work sites. For a rig its size, the ROC L8 has outstanding terrain manoeuvrability with its ideal weight distribu-tion and low centre of gravity, generous clearance and heavy-duty tracks with 20 degrees of oscillation.

Designed to keep you up and runningLike all our crawlers, the ROC L8 is designed for easy maintenance with ready access to service points. All hoses and cables are marked at each end to coincide with the schematic drawings in spare parts lists for better trouble-shooting. The optional fast fuel-filling system adds additional efficiency.

Benches using pre-splitting

and DTH drilling

Steeper slopes mean better economyPre-split DTH drilling using the ROC L8 creates higher and narrower benches. This contributes to steeper pit slopes and less waste rock to be extracted. The advantage is a low waste-to-ore ratio, which means higher productivity and better overall pit economy. The method has been successfully used at a number of mines throughout the world.

ROCL8

Benches using traditional method

Waste excess

Page 4: 03. ROC L8 (25) & ROC L8 (30)

www.atlascopco.com

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Quick facts ROC L825 and ROC L830

A selection of options on ROC L825 and L830

For a more comprehensive options list, please contact your local Atlas Copco Customer Center.

Main application area: DIMENSION STONE INDUSTRY CONSTRUCTION AGGREGATE QUARRIES LIMESTONE QUARRIES SELECTIVE MINING SURFACE MINING

Drilling Method: TOPHAMMER DOWN-THE-HOLE COPROD

Rock Drill: COP 44 COP 54 COP 64

Drill Steel: 89 mm (3 ½") 102 mm (4") 115–140 mm (4 ½–5 ½")

Hole Diameter: 216 mm (8 ½")

Maximum hole depth:

54 m (177')

Engine Power:rating at 1800 rpm 500 kW (670 HP)(rpm varies for different type of rigs)

Available air flow FAD: 500 l/s (1060 cfm)

110 mm (41/16") 203 mm (8")

LONG FEED

SHORT FEED

402 kW (547 HP)

45 m (148')

L8 30 bar

405 l/s (858 cfm)

470 l/s (995 cfm)

Lifting aidThe feed-mounted service winch offers lifting capacity when loading drill tubes into the rod handling system for extended hole depth or for lifting components for service. The control is conveniently located at the break out table.

L8 25 bar

L8 30 bar

L8 25 bar328 kW (440 HP)

Increased safetyWith a reverse camera, the rear terrain can be viewed on a cab-mounted monitor for increased safety while reverse tramming. The same monitor may also be connected to the optional DVD for viewing DVD discs.

Accurate samplingROC L8 is designed to handle in-pit grade control for accurate geological sampling. A selection of Reverse Circulation options is available for samples of varying size and quality. The pictured cone sampler is controlled from the cabin.

Smooth bench floorsMounted on the rotary head, a laser receiver signals the hole depth to the cab-mounted monitoring system and automatically stops the drill at a pre-set hole depth. The function ensures smooth bench bottoms irrespective of terrain and drill set up.

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